kInitialRotationAtom
An atom that specifies an initial angle of rotation for a path tween atom.
Overview
Specifies an initial angle of rotation for a path tween atom of type kTweenTypePathToMatrixRotation, kTweenTypePathToMatrixTranslation, or kTweenTypePathToMatrixTranslationAndRotation.
Its parent atom is a kTweenEntry atom.
A kTweenEntry atom can contain only one kInitialRotationAtom atom. The ID of this atom is always 1. The index of this atom is always 1.
This atom is a leaf atom. Its data type is Fixed.
This atom is optional. If it is not included, no initial rotation of the tween atom is performed.